Improvement in fltiting-machines



l THOMAs LEAVITT AND E. L. HOWARD, or HALDEN, MASSACHUSETTS.

Letters Patent No. 100,645, dated March 8, 1870.

I MPRovEMveNT 1N Enorme-MACHINES.

The Schedule referred to vin these Letters Patentand making part of the same To 'all whom it nia/y ctmcern: r i

`Be it known that we, THOMAS LuAvr-rtr and'E. L. HOWARD, both of Malden, in the county of Middle-` sex, and State of Massachusetts, have invented an `Improved Crimping. or Fluting-Machne.; and we do hereby declare that the following, taken in ,connection` with therdrawings which accompany and form `part of this specification, is a description of our invention sufficient to enable those skilled in the art to practice it.

The invention relates to details of 'construction of rotary fiuting 'or crimping-machines iii-which tinted or corrugated rolls meshing together are used, the rolls being hollow and being heated by snitable'cylindrical i hot irons placed withinthen The improvements have reference to the provisions for hanging and adjusting the rolls and for supporting the irns within them, and also to the method of hang-` ing the doors or gatesfwhich close the rolls when the irons are within them.

"The drawings represent a crimping or'flnting-machine embodying our improvements.

Ashows the machine partly in side elevation and partly in sectional elevation. B is a vexttical cross-section of the rolls. C is an end view of the roller-trame, showing the l doors that shut the irons within the rolls.

D is a sectional plan, showing the detail Ot construction by `which the upper roll-carrier is entered, snppoited, and guided in the -bars of the frame. a denotes a central pillar or standard, supporting upon its top a longitudinal barfor bed-plateb, at Vthe opposite ends of which are two standards, c (l, that immediately support the lower crimping-roll e.

(This roll c and its fellow-roll fare tinted or corrugated, as arelother rolls in such machines, and in crimping fabrics .they opeiate,so iin' as the' flutes are concerned, precisely like other crimping or iintingmachines.)

The standard c forks into ltwo nprights, gli, Vat the foot of which ,they unite and form a half bearing, fi,

upon which a cylindrical end, j, of the, lower roll e rests and' rotates.

` The opposite end'of this roll is made open or with' a `circular opening ofthe size of the inner or mean diameter 'of the roll, `and by means of this opening such end of the cylinder is journaled and rotates on journal-pin or stud, k, projecting from the topof the standf ard d, as seen at A;

Over the bearing t', between the ruprights g Il, is a sliding plate, l, iu which is a bearing, m, for one end ofthe upper roll f, the `cylindrical end of the upper roll serving as its journal and 'rest-ing and rotating in this bearin g.

vThe bearing'or'plate ldependsfrom a slide, o', which extends across betweenthe uprights g lans seen at (l and D, this bearing being hung to the slide o by a screw, p,A and the slide being kept in position by two lips, q lr, which project upon opposite sides of the-np rights, as seen atl). j The slide o is formed onv one' endv of a bar, s, extending over the upper roll, a vertical arm,-t, depending from the opposite end of the bar, and havingan Vinwardlyprojecting journal-pin, n, which projects into 'and supports the adjacent end of the upper' roll, as seen at A.

rlhe two uprights g h 4extend above the bar s, as z seen at B, and unite over the center of the bar,v forming there a boss, e, through which passes a vertical rod, w, to the bottom oi' which is pivoted the bar s, as 'seen at x, the pivot-joint allowing-vthe` bar s (and the upper roll hung thereto) to rock longitudinally,

while the lips q 'r prevent 'any laterally-swiveling movement of the roll.

The rod lw slides lloosely through the boss t', but

-between the bottom of theboss and the bar s is a strong spring, y, the stress of which keeps-the upper roll down in contact with the lower roll, andv one end of the lower roll down upon its half bearing t'.

'.lo-valiably adjustthe pressure of the upper roll, the rod w is formed with a screw-thread, z, upon which works a nut, a?, the lower end of the spring resting directly upon the nut, and the stress of the spring being varied by turning the nut up or down, as will be readily understood, the pivotal-connection of the bar enabling either end of the roll to yield toirre'gularities in thickness of the material heilig crimped.

While provision is thus made for adjustable pressnre of the upper roll, the two rolls areadjusted rela-- tively to each other, or the distance of the upper from'v 'the under one is adjnstably determined, by hanging the roduf to the arm or bar s by means of a nut, Il",

working on a screw-thread, c2, at the upper part of' the rod, the rod and the roll hung thereto being raised by turning the unt in one direction, and the roll falling by the stress oi' the spring, when the unt is turned in the,opposite direction.

To separate the rolls for the purpose of easily rc'- moving them, we employ on the lrod 'w a ring or collar, d2, at the lower edgefot' which are inclines or cams e2, which work over projections f2, extendin'gfrom thc- 'boss c.

lhe nut b2 rests upon the top of the cam-ring, and the ring isprovided with a lever-handle, g2, by turning which in one direction the' cams e2 slide over the projections fz, and lift the rod4 and the upper roll,preverse movement of the lever allowing the spring to press down the rod and roll. Y

The upper roll is heated by an iron, It?, and the lower roll by an iron, i". In` otherlcrimping-'machines these irons rest directly upon the inner surfaces of the rolls, along the whole length of each iron, and as the irons are sometimes very hot when placed in the rolls, the Contact causes the roll to become over-heated, so that the fabric to be crimped is burnt. To remedy this, we so construct and dispose the irons that the hot iron does not come iu direct contact with the surface of the roll.

For this purpose the iron may be made with a een tral hole, jl, running axially through it, the iron by means of this hole being hung upon a long pin, k2, projecting centrally from the inner face of the journalpin ,as shown in the upper roll at A, the iron being slightly smaller in diameter than the inner diameter of the roll, and direct contact ofthe iron with the roll being thus prevented. Or the iron being made slightly smaller ein diameter thauthe roll, as described, may

, have flanges l at its opposite ends, these flanges presenting insulhcient surface to enable the roll to become unduly heated by their contact, and the main surface of the roll being by them kept out of contact with the upper surface of the iron, as shown in the lower roll at A.

The roll itself may be made with inwardlyprqiectv ing flanges near its ends, to support the iron out of contact with the main surface ofthe roll, but the flanges [l on the iron are preferable, as the iron is more easily placed in the roll than if the flanges were in the rolls.

To enable the irons to be readily taken from the rolls or replaced therein, there is provided foreach roll a hinged door, mi. The door of the upper roll is hinged'like a stove-door, as seen at G, and opens laterally, as will be readily understoml.

rlhe door of the lower roll is formed as an integral part of the handle n?, the handle turning on a hinge, o2, and the door being confined in a closed position by turning a button, p2, which projects through a slot, q, in the. handle, as seenat A and C.

To preserve the heat of the rolls as much as is possible, each journal-pin k u may be made tapering or frusto-conical, as seen at A, so that contact of the cylinder is in elect only in one lateral plane or in a line around each roll, just at or near the end of the roll.

All of these details of construction tend to increase the utility, etliciency,'and simplicity of the machine, enabling it to run the greatest length of time without loss of heat, and to be in every way easily manipulated with the most ordinary skill, both as to all necessary adjustments and to the application and removal of the irons, and also as to the dismen'iberment of the machine.

To unhouse the rolls, the upper roll is lifted by turning the lever g2, the screw p is removed, and the slide-plate l slipped out, when tbe-rolls may both be readily taken out.

`We are aware that it is notnew to hang the rolls so that they are removable. Nor is it new to apply spring pressure to the upper roll, nor to so arrange the upper roll that it may be raised or lowered, nor to apply doors to the rolls, all of our improvements relating to these points consisting iu the details of construction or arrangement by which we effect the object desired.

We claim- The described means for adjusting the upper frame and its roll in position relatively to the lower roll, the same consisting in the combination with the rod passing loosely through the boss and with the spring y, of the nut lil, working upon a screw-thread at the top of the rod, substantially as shown and described.

Also, in combination with either luting-cylinder, a cylindrical heating-iron, the main surface of which is kept from contact with the roli by a flange 0r flanges, substantially as described.

Also, in combination .with the lower roll, a hinged handle or crank, which, when swunk into position for driving the machine, serves also as a cap or door for the roll, substantially as shown and described.

THOMAS LEAVITT. Witnesses: E. L., HOWARD.

FRANCIS GoULD, S. B. KIDDER. 

